In this paper , a switch power circuit is given as an example to introduce how to confirm the minimum clearance and creepage distance with working voltage on different safety standards 今以一開關(guān)電源電路為例,介紹在不同標(biāo)準(zhǔn)下如何根據(jù)工作電壓情況對最小電氣間隙和爬電距離值進(jìn)行確定。